EP0522345A1 - Isolation de tension de réseau avec détecteurs au-dessous de plaques chauffantes vitrocéramiques. - Google Patents
Isolation de tension de réseau avec détecteurs au-dessous de plaques chauffantes vitrocéramiques. Download PDFInfo
- Publication number
- EP0522345A1 EP0522345A1 EP19920110533 EP92110533A EP0522345A1 EP 0522345 A1 EP0522345 A1 EP 0522345A1 EP 19920110533 EP19920110533 EP 19920110533 EP 92110533 A EP92110533 A EP 92110533A EP 0522345 A1 EP0522345 A1 EP 0522345A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sensor
- glass ceramic
- mains voltage
- ceramic cooking
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000002241 glass-ceramic Substances 0.000 title claims abstract description 26
- 238000010411 cooking Methods 0.000 title claims abstract description 7
- 238000002955 isolation Methods 0.000 title 1
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 239000003989 dielectric material Substances 0.000 claims description 4
- 238000001465 metallisation Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract 2
- 230000001681 protective effect Effects 0.000 description 2
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B3/00—Ohmic-resistance heating
- H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
- H05B3/74—Non-metallic plates, e.g. vitroceramic, ceramic or glassceramic hobs, also including power or control circuits
- H05B3/746—Protection, e.g. overheat cutoff, hot plate indicator
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B2213/00—Aspects relating both to resistive heating and to induction heating, covered by H05B3/00 and H05B6/00
- H05B2213/05—Heating plates with pan detection means
Definitions
- the invention relates to a mains voltage insulation for sensors under glass ceramic cooktops, wherein a metallic sensor is arranged under a glass ceramic cooktop inside or outside the hot area of the glass ceramic cooktop caused by a radiant heater.
- the object of the invention is therefore to be able to operate metallic sensors below the glass ceramic cooktop in the hot area thereof without having to work with protective low voltage.
- the arrangement according to the invention for solving this problem is characterized in that the sensor can be operated at a higher-frequency operating point which is above normal operation, and in that the sensor is designed as a mains voltage-isolating, capacitive series circuit which is dimensioned for mains voltage contact protection.
- An advantageous embodiment of the invention is characterized in that the arrangement-related capacitive series connection consists of three dielectrics, which are surrounded by metallizations. Further advantageous embodiments of the invention are contained in the subclaims.
- FIG. 1 a glass ceramic cooktop 1, a metallic sensor 2, insulating dielectric layers 3 and a radiant heater 4 can be seen.
- This sensor arrangement acts as a capacitive and temperature-dependent indicator as a result of changes in capacitance due to materials on the glass ceramic or via the loss factor delta as a function of the time of the glass ceramic.
- the sensor created in this way is at the same time isolating the supply voltage from the metalization 2 as an insulation layer.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Electric Stoves And Ranges (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Control Of High-Frequency Heating Circuits (AREA)
- Insulators (AREA)
- Glass Compositions (AREA)
- Laminated Bodies (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE9108013U DE9108013U1 (de) | 1991-06-28 | 1991-06-28 | Netzspannungsisolierung für Sensoren unter Glaskeramik-Kochflächen |
DE9108013U | 1991-06-28 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0522345A1 true EP0522345A1 (fr) | 1993-01-13 |
EP0522345B1 EP0522345B1 (fr) | 1995-08-23 |
Family
ID=6868790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP92110533A Expired - Lifetime EP0522345B1 (fr) | 1991-06-28 | 1992-06-23 | Isolation de tension de réseau avec détecteurs au-dessous de plaques chauffantes vitrocéramiques. |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP0522345B1 (fr) |
AT (1) | ATE126876T1 (fr) |
DE (2) | DE9108013U1 (fr) |
ES (1) | ES2078593T3 (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0639743A2 (fr) * | 1993-08-18 | 1995-02-22 | Bosch-Siemens HausgerÀ¤te GmbH | Table de cuisson |
GB2414559A (en) * | 2004-05-26 | 2005-11-30 | Ceramaspeed Ltd | Cooker plate temperature sensing assembly with an electrically insulating layer |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ES1231039Y (es) | 2019-05-03 | 2019-09-09 | Eika S Coop | Dispositivo radiante |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0288915A2 (fr) * | 1987-05-01 | 1988-11-02 | E.G.O. Elektro-Geräte Blanc u. Fischer | Radiateur à rayonnement électrique pour chauffer une plaque, en particulier une plaque vitrocéramique |
-
1991
- 1991-06-28 DE DE9108013U patent/DE9108013U1/de not_active Expired - Lifetime
-
1992
- 1992-06-23 DE DE59203358T patent/DE59203358D1/de not_active Expired - Fee Related
- 1992-06-23 AT AT92110533T patent/ATE126876T1/de not_active IP Right Cessation
- 1992-06-23 ES ES92110533T patent/ES2078593T3/es not_active Expired - Lifetime
- 1992-06-23 EP EP92110533A patent/EP0522345B1/fr not_active Expired - Lifetime
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0288915A2 (fr) * | 1987-05-01 | 1988-11-02 | E.G.O. Elektro-Geräte Blanc u. Fischer | Radiateur à rayonnement électrique pour chauffer une plaque, en particulier une plaque vitrocéramique |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0639743A2 (fr) * | 1993-08-18 | 1995-02-22 | Bosch-Siemens HausgerÀ¤te GmbH | Table de cuisson |
EP0639743A3 (fr) * | 1993-08-18 | 1998-11-25 | BSH Bosch und Siemens Hausgeräte GmbH | Table de cuisson |
GB2414559A (en) * | 2004-05-26 | 2005-11-30 | Ceramaspeed Ltd | Cooker plate temperature sensing assembly with an electrically insulating layer |
GB2414559B (en) * | 2004-05-26 | 2007-08-08 | Ceramaspeed Ltd | Temperature sensor assembly |
Also Published As
Publication number | Publication date |
---|---|
ES2078593T3 (es) | 1995-12-16 |
EP0522345B1 (fr) | 1995-08-23 |
DE59203358D1 (de) | 1995-09-28 |
ATE126876T1 (de) | 1995-09-15 |
DE9108013U1 (de) | 1991-09-05 |
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